Gunderson Marine in Portland, Ore., launched the Kirby 185-01 tank barge in late May. The 578', 185,000-bbl. oceangoing oil and chemical tank barge for Kirby Offshore Marine is part of an articulated tug-barge unit. The barge will be mated with a 10,000-hp ATB tug from Nichols Brothers Boat Builders, Freeland, Wash. Kirby is building four new, state-of-the-art coastal ATBs.